Contractless IPhone 3G broadband in New Zealand:
The guys at the Vodafone store will tell you that you need an iPhone contract to use 3G data on the iPhone. That's not entirely true. They preconfigure the iPhones to use the iphone.vodafone.net.nz APN but you can easily browse to this website on your iPhone to reconfigure your iPhone to use the standard www.vodafone.net.nz or internet APN. With this setting you an opt to use Vodafone's $1 a day 3G data plan or their contractless monthly data plans.